Event Coverage Detection and Event Source Determination in Underwater Wireless Sensor Networks

. 2015 Dec 15;15(12):31620–31643. doi: 10.3390/s151229875

Algorithm 3 Sensory data gathering and aggregation.

Require:

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$u v_{r e l}$ : a relay sensor node
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$U V_{e v t}$ : a set of sensor nodes whose sensory data should be relayed by $u v_{r e l}$

Ensure:

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$S R Y D T_{u v}$ : a set of sensory data to be gathered and routed by $u v_{r e l}$

1:
$u v_{r e l}$ sends a getData = < $i d_{u v}$ , { $\bar{i d_{u v}}$ }, pid, HC( $u v_{r e l}$ )> control packet to ∀ $u v_{e v t}$ ∈ $U V_{e v t}$
2:
$c n t_{s r y D t}$ ← 0
3:
while $u v_{r e l}$ receives a $s r y D t_{u v}$ data packet from a sensor node $u v_{e v t}$ ∈ $U V_{e v t}$ do
4:
$S R Y D T_{u v}$ ← $S R Y D T_{u v}$ ∪ { $s r y D t_{u v}$ }
5:
$c n t_{s r y D t}$ ← $c n t_{s r y D t}$ + 1
6:
if $c n t_{s r y D t}$ ≥ sizeOf( $U V_{e v t}$ ) then
7:
break
8:
end if
9:
end while
10:
$u v_{r e l}$ relays $S R Y D T_{u v}$ to SN